TA_W18A: - UNKNOWN - UNKNOWN
http://anf.ucsd.edu/api/ta_prelim/rrd/plot/?sta=W18A&chan=rtm&net=TA&tw=d
http://anf.ucsd.edu/api/ta_prelim/rrd/plot/?sta=W18A&chan=rtm&net=TA&tw=w
http://anf.ucsd.edu/api/ta_prelim/rrd/plot/?sta=W18A&chan=rtm&net=TA&tw=m
http://anf.ucsd.edu/api/ta_prelim/rrd/plot/?sta=W18A&chan=rtm&net=TA&tw=y
http://anf.ucsd.edu/api/ta_prelim/rrd/plot/?sta=W18A&chan=rtm&net=TA&tw=l